Date: Fri, 24 Jan 2014 17:35:41 +0000 (UTC) From: chris...@astron.com (Christos Zoulas)
In article <7458.1390534...@splode.eterna.com.au>, matthew green <m...@eterna.com.au> wrote: > >> Log Message: >> XXX Also note that there is still a small window where the ref-count can >> XXX be decremented, and then the process/thread preempted. If auto-unload >> XXX happens before that thread can return from the module's code, bad >> XXX things (tm) could happen. > >in this case, please simply disallow unload for this module always. >if the race is fixed, it can be enabled again. I think that most module unloads suffer from this race, any ideas how to fix it? Shouldn't devsw_detach or config_fini_component handle this? Why does the crypto device need special reference counting that other devices don't?
